Slider



July'zi, 1942.

J. H, KOHLER SLIDER Filed June 25, 194D ,9 I Invezzar:

Jz Il.' Kahl e2.

5y JO., I I

retenied July 21, 1942 I UNI-TEDr STATE n John H. Kohler,

Cambridge,

gvPATgENTE VOFFICEA Mass., assignor to United-Carr Fastener Corporation, Cambridge,

Mass.; a corporation of Massachusetts Appiieetien June 25,1940, serial Ne. 342,241

This invention relates toloclxing' devices for separable fasteners of the slider-controlled type and has for its chief purpose to provideA a p'ull device in assembly with the slider and constructed to engage automatically the separable fasteners upon release.

Referring to the'drawixig, in which I have n K The chief advantage of this invention is em lbodied in the construction of the slider enablingv y 'the tongue I'l to lock automatically with the'lock,

illustrated a preferred embodiment of my inven- Fig. 5 is a detail oi' the coll spring provided y as a part of the device; and i e Fig6 is a perspective of the'pull member.

of stringers i and 2 provided with locking members 3 of any desired form adapted-to be coupled and uncoupied by movement of a slider t along/.the stringers. 'I'he'slider d' has wings 5' and t forming diverging channels through which pass the `locking members 3 while beirigengaged or disengaged by the slider.

attaching lug l formed in anysuitable way and disposed on the outer face of the wing 5. The lug 'l has a recess t extending through the sides thereof. A pull member 9 is provided as a part of the slider having a longitudinal opening lll (Fig. 4) spaced slightly from an end il to form a bridge intermediate the opening` and end ll.

ing members 3 when pressure upon the pull mem- -ber for raising it into operative position is released. To accomplish this purpose I have provided a coil spring i9 having a body 2li (Fig. 5)

which isg'enerally cylindricalin form and providi'ng' free ends 2| and 22-extending outwardly in opposite directions. In assembling the parts of the slider the coil spring it is -disposed within the openingl 8 of the attaching lug 'l with the end 2| engaging the outersurface 23 (Fig. 1) of the wing 5. Nextv the pull member 9 is pivotally attached to the attaching lug 'l'.V Assembly of the pull member with the lug 'l is preferably carried out by spreading the legs l3-l3 to pass the free ends of thepnrjections I4 and i5 over Referring to' the drawing, I have shown a pair The slider has'an vThe pull member .has a slit l2 extending from the opening" iii through the bridge and cooperat--y ing with the opening .lli to divide the pull member into a pair of yieldable legs iB-lZ-l. At the same time the slit l2 divides the bridge into a pair of inwardly-extending portions I4 and l5 for pivotal assembly within the opening 8 loi the attaching lug. The pull member has an opening I6 extending laterally from the opening l0 adjacent the projection l5 for a purpose to be de-l scribed. A projecting 'tongue l1 is formed integral with the pull'me'mber 9 adjacent its end Il for` eng/agement with the interlocking' members 3 through an opening I8 (Figs. 2 and 3) of the wing 5 whenthe pull member is in inoperative position. The opening i8 is located in predetermined relation to the opening 18 of the attachf ing lug 'l 'to receive the tongue memberwhen the parts are in'pivotal assembly.

. the ends of the body I2li of the spring and then closing the legs to dispose the free, ends of the projections in substantially abutting relation within the body 2i) and the opening 8 of? the lug. The end 22 of the coil spring passes up` wardly through the slot i6 of the pull member and is bent to engage the outer` surface 2d ofl the pull member, as shown most clearly in Fig.' 1. Thus in inoperative position of the member 9, as shown in Fig. -2, the tongue Il. engages between the locking members 3 so as to prevent movement of the locking members through the i slider. When the pull member is grasped by the g iingers and raised in operative position, as shown in Fig. 3, the tongue ll is swung away from the' v l locking members 3 into the opening l8'of the pas upon the pull member to raise it into-operative' position is against the tension of the coil spring .I9 with the result that when the pull member is released, the coil -spring automatically forces the pull member into inoperative position, shown in Fig. 2, so as to engage the tongue I'l with'the-` locking members.

Thus by my invention I have provided a simple and advantageous method of effecting a locking action. My invention. is an improvement over those slider 4devices heretofore known in which I1 of the pull' reliance was placed on the weight of the pull member to move it down into locked position due to the factA that with the present invention a positive action isnautomatically assured whereas with the earlier' form it was usually necessary to i deliberately push thel pullmember into inopera- `tive position t'o be certainthat the projecting slider wing 5 so that the locking members may sfreely through the `slider channels. VForce l I tongue thereof was inproper engagement with the locking members.

Although I have illustrated and described a preferred embodiment of-'my invention, I d o not wish to be limited thereby because the scope of my invention .is best defined by the following claims.

I claim: 1. The vcombination with a pair of stringers having interlocking elements thereon, of a slider movable along said stringers to control said interlocking members, said slider having wings l forming diverging channels, an attaching lug on one of said wings having an opening, a pull member pivotally secured to said lug, said pull` memmember pivotallysecured to said lug, said pull member having integral inwardly-extending portionsat one end extending into said opening of said lug to pivot said pull to said lug. said pull member having an opening adjacent said inwardly-extending portions to receive a portion of said lug when said pull member is in down position adjacent said last-mentioned wing, said pull member having a projection engageable with said interlockingmembers in said down position of. said pull to lock said slider, and a coil spring surrounding said inwardly-extending portions oi' said pull and disposed within said opening ofsaid lug, said'spring member having end elements enber having integrally inwardly-extending portions at one end projecting into said opening of said lug to pivot said pull to said lug. said pull member having a projection engageable with said interlocking members in inoperative position of said pull to lock said slider,v and a spring assembled with said pull within said opening of said attaching lug, said-spring being engageable with said slider and said pull member in all posi-` tions of the pivotal movement thereof to maingageable with said slider and said pull member in all positions of the pivotal movement thereof to maintain automatically said pull member in said down position.

4. The lcombination with 'a pair of stringere having interlocking members thereof, of a slider movable along said stringers to control said interlocking members, said slider havingwings i forming diverging channels, an attaching lug on tain automatically the pull in predetermined position upon the slider. 2. The combination with a vpair of stringers having interlocking elements thereon, of a slider movable along said stringersto control said in,

terlocking members, said sliderk having wings forming diverging channels, an attaching lug mounted on the outer surface of one of said wings, said lug having an opening, a pull member pivctally secured tol said lug, said pull member vhaving integral. inwardly-extending portions at .one end extending into said opening of said lug to pivot said pull to said lug, said pull member having aprojection engageable with said interlocking members in down positionl of said pull to lock said slider, and a coil spring surrounding.. y said inwardly-extending portions of said pulland disposed within said opening-of said lug, said with said slider and said pull member in all positions of the pivotal movement thereof to maintain automatically said pull member in said down position.

3. 'I'he combination withfa pair of stringers having interlocking elements thereon, of-a slider movable along said stringers'to control saidin-f, terlocklng members, said, sliderhaving wings forming diverg'ing channels, an- .elongated attaching lug mounted on the outersurface of one of said wings, said lug having an opening, a pull tending to forfcesaidtpull member into saidinoperative position.

5 The-combination with a 1pair of stringers having interlocking members thereon, of a slider movable. along said stringers to control said inspring member having end elements engageable terlocking members, said slider having wings forming diverging channels, an attaching lug on one of said wings having an opening, a pull member pivotally engageable with said attaching lug Within said opening, s aid pulll member having a projection engageable with said linterlocking 'members in inoperative position of the pull member to lock the slider, a cylindrical coil spring disposed within said opening of said attaching lug,

said vpull membershaving portions disposed within-.said coil spring and saidopening of said.

attaching lug, `and said spring having end portions engageable with s aid pull memberA and said last-mentioned wing in all positions o1' the plvotal movement thereot'tending to force 'saidvpull member into said inoperative position.

JOHN H. KOHLER. 

